How to save mathematical signs to mysql or mssql database?

To do this, you need a software that renders mathematical formula as images at some point. Here's few ways of doing it.

1. Create images for the formula and store the image in the database. (I think this is what you are going to do): I do not know of any software/library that can do this.

2. Store the formula in a textual format (e.g. MathML[^]), and render the image as you send the webpage to the client: But this also needs the same software in point 1, and point 1 seems to be more efficient if the formula are unchanged for a long time.

3. Store the formula in textual format (say MathML), and let the client's web browser render it: Some web browsers can render embedded MathML. But its SOME web browsers after all. Not every one of the can do that. You can find information about browser support on MathML Wikipedia page.